Good idea! Here's what I found. There is a field called Credit for Prior Year Minimum Tax that got filled with an amount of $500. And there is a form schedule 3 and smart worksheet 8801 with calculations using values from form 6251 and 8801 from year 2021. So based on this I was supposed to get an additional $500 refund. But I've no idea how come Turbo tax did not include this when I filed and is including it now.
